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Diodes Incorporated AZ23C3V0-7
- Part No.:
- AZ23C3V0-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Zener Diode Arrays
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
AZ23C3V0-7.pdf
- Description:
- DIODE ZENER ARRAY 3V 300MW SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:2,882
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Product details
Overview
AZ23C3V0-7 from Diodes Incorporated is a dual common-anode 300mW surface-mount Zener diode with nominal Zener voltage 3.0V (2.8–3.2V range), 95Ω max Zener impedance at 5mA, and -0.060%/°C temperature coefficient. It provides precision voltage reference and overvoltage clamping in space-constrained power management circuits such as USB port protection and low-voltage LDO feedback networks.
For engineers reviewing the AZ23C3V0-7 datasheet, AZ23C3V0-7 pinout, AZ23C3V0-7 application, or AZ23C3V0-7 equivalent, key selection criteria include dual-Zener matching (≤5% VZ deviation between elements), SOT23 package thermal resistance (417°C/W), and reverse leakage (<0.1µA at 0.8V) for low-power biasing and sensing.
Technical Context
This dual Zener operates in common-anode configuration: both cathodes are electrically isolated, sharing one anode terminal. Each element is rated for 5.0mA test current and exhibits tight ±0.2V Zener voltage tolerance at 25°C.
The device delivers stable regulation under low-current conditions (IZK = 1.0mA) with 500Ω max knee impedance, and supports operation across -65°C to +150°C ambient range while maintaining JEDEC-compliant reliability per AEC-Q101.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 2.8–3.2V at IZT = 5.0mA - defines clamping threshold for 3.3V rail protection |
| Max Zener Impedance (ZZT) | 95Ω at 5.0mA - ensures minimal voltage shift under load variation |
| Temperature Coefficient | -0.060%/°C - enables predictable drift compensation in temperature-sensitive references |
| Power Dissipation (PD) | 300mW - supports continuous operation on FR-4 PCB with standard pad layout |
| Reverse Leakage (IR) | <0.1µA at 0.8V - critical for ultra-low-quiescent-current bias networks |
| Thermal Resistance (RθJA) | 417°C/W - determines junction temperature rise under 300mW dissipation |
Pinout & Package
Package: SOT23 - surface-mount plastic package with matte tin-plated alloy 42 leadframe, moisture sensitivity level 1, and UL 94V-0 flammability rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 1) | Common Anode Node | Shared terminal for both Zener elements; connects to system ground or low-side reference point |
| Cathode A (Pin 2) | Zener Element A Cathode | First regulated output node; used for primary voltage reference path |
| Cathode B (Pin 3) | Zener Element B Cathode | Second independent regulated output; enables dual-rail sensing or redundancy |
Key Features
| Feature | Design Value |
|---|---|
| Dual Zeners in Common-Anode Configuration | Enables compact dual-reference generation without external interconnects; reduces board area by ~40% vs. discrete pair |
| ≤5% VZ Matching Between Elements | Supports matched clamping in differential or ratiometric circuits (e.g., ADC reference dividers) |
| 300mW Power Rating with 417°C/W RθJA | Allows sustained 5mA operation at +85°C ambient without derating on standard FR-4 |
| AEC-Q101 Qualified (HBM ESD 8kV) | Validates robustness for automotive body electronics and industrial control modules exposed to handling stress |
Applications
| USB Port Overvoltage Protection | LDO Feedback Voltage Reference |
|---|---|
Use Scenario: Clamps transient surges on USB D+/D− lines during hot-plug events or ESD discharge. IC Role / Device Role / Timing Role: Dual-Zener acts as bidirectional shunt clamp-each cathode protects one data line while sharing ground return. Use Value: Prevents damage to USB transceivers by limiting voltage to ≤3.2V, leveraging matched VZ to maintain signal integrity symmetry. | Use Scenario: Sets precise output voltage of adjustable low-dropout regulators in battery-powered IoT sensors. IC Role / Device Role / Timing Role: Provides stable 3.0V reference to LDO feedback divider; second Zener validates reference stability via cross-check. Use Value: Achieves ±1.5% output accuracy over temperature using -0.060%/°C TC and <0.1µA leakage to minimize divider error. |
| Microcontroller Reset Circuit | Low-Power Sensor Bias Network |
Use Scenario: Generates clean reset threshold for 3.3V microcontrollers during brown-out conditions. IC Role / Device Role / Timing Role: Zener element A establishes 3.0V trip point; element B monitors supply rail for hysteresis or fault detection. Use Value: Enables dual-threshold reset logic with <5% VZ matching, eliminating need for external comparators. | Use Scenario: Biases photodiode or MEMS sensor front-end amplifiers in always-on wearable health monitors. IC Role / Device Role / Timing Role: Supplies ultra-stable 3.0V bias to op-amp input stage; second Zener powers auxiliary calibration circuitry. Use Value: Maintains sub-100nA total quiescent current due to <0.1µA reverse leakage, extending battery life beyond 2 years. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-Zener voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C3V0 | Single Zener, same VZ range but no dual-element matching; 400mW rating | Requires two devices for dual-rail use; higher footprint and assembly cost | Select when only one reference node is needed and board space permits discrete placement |
| DZ23C3V0 | Common-cathode dual Zener; identical VZ, impedance, and package but inverted polarity | Suitable for high-side clamping where cathode must tie to supply rail | Choose when circuit topology requires cathode-common connection instead of anode-common |
Compared with BZX84-C3V0 and DZ23C3V0, AZ23C3V0-7 uniquely integrates matched dual Zeners in common-anode topology-reducing component count by 50% and enabling differential reference architectures impossible with single or cathode-common alternatives.
Availability
AZ23C3V0-7 is available at Aetrix Electronics and suitable for USB interface protection, LDO feedback referencing, and microcontroller reset conditioning requiring stable component supply across industrial and automotive production programs.
Supply support for AZ23C3V0-7 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Diodes Incorporated is a global semiconductor company specializing in discrete, analog, and mixed-signal ICs, with manufacturing certified to IATF 16949 and product qualification to AEC-Q101.
The AZ23 series targets high-reliability voltage reference and protection applications in automotive, industrial, and consumer systems where dual-Zener matching, low leakage, and SOT23 scalability are essential.
FAQ
What is the maximum Zener test current for reliable long-term operation?
The AZ23C3V0-7 is characterized at 5.0mA (IZT) and supports continuous operation up to this current when mounted on FR-4 with recommended pad layout. Derating begins above 85°C ambient per the 300mW power limit and 417°C/W thermal resistance.
How does the -0.060%/°C temperature coefficient affect voltage stability?
This coefficient means the Zener voltage decreases by 0.060% per °C rise in junction temperature. At 100°C ΔT, VZ shifts by -1.8mV - negligible for 3.0V references in non-precision applications but critical for ratiometric designs requiring <0.5% total error.
Can AZ23C3V0-7 replace single-Zener diodes in existing designs?
Yes, when only one Zener element is used - connect Pin 1 (anode) to ground and Pin 2 (cathode A) to the reference node; leave Pin 3 (cathode B) unconnected or tied to same node. The unused element introduces <1pF capacitance and <1nA leakage, typically negligible.
Is automotive-grade qualification available for this part number?
The commercial-grade AZ23C3V0-7 is not automotive-qualified. For AEC-Q101 compliance, specify the Q-suffix variant (e.g., AZ23C3V0Q-7-F), which undergoes additional PPAP, change control, and IATF 16949-manufactured lot traceability.
AZ23C3V0-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Configuration:
- 1 Pair Common Anode
- Voltage - Zener (Nom) (Vz):
- 3 V
- Tolerance:
- ±5%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 95 Ohms
- Current - Reverse Leakage @ Vr:
- -
- Voltage - Forward (Vf) (Max) @ If:
- -
- Operating Temperature:
- -65°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
AZ23C3V0-7 FAQ
1.How can I place an order for AZ23C3V0-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AZ23C3V0-7 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for AZ23C3V0-7 reliable?
The price and inventory of AZ23C3V0-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AZ23C3V0-7 is usually 5 days.
3.What payment methods are accepted for AZ23C3V0-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AZ23C3V0-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AZ23C3V0-7?
AZ23C3V0-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AZ23C3V0-7 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for AZ23C3V0-7?
For technical support, including AZ23C3V0-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AZ23C3V0-7 requirements.
6.How does Aetrix verify that AZ23C3V0-7 is sourced from the original manufacturer or authorized distributors?
All AZ23C3V0-7 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that AZ23C3V0-7 meets industry standards.
7.What is the process for return or replacement of AZ23C3V0-7?
All AZ23C3V0-7 units undergo pre-shipment inspection (PSI). If there is an issue with AZ23C3V0-7, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The AZ23C3V0-7 part is unused and in its original packaging.
Return procedure for AZ23C3V0-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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